Adding-machine.



PATENTED MAR. 15, 1904.

W. H.0LARK.

ADDING MACHINE.

APPLICATION FILED DEC. 24, 1894.

2 SHEETS-SHEET 1.

NO MODEL.

IN VE N 708 B Y WM W A TTORNE w WITNESSES.-

No. 754,544. PATENTED MAR, 15, 1904. w. H. CLARK.

ADDING MACHINE.

APPLICATION FILED DBO. 24, 1894.

F0 MODEL. 2 SHEETS-SHEET 2.

WITNESSES. INVENTOR @fwf 7410 W A TTOHNE X3 n4: mums PETERS co, mm'aumc"WASNNGYDI a c UNITED STATES Patented March 15, 1904.

PATENT OEEIcE.

WILLIAM H. CLARK, OF ERIE, PENNSYLVANIA. ASSIGNOR, BY MESNE ASSIGNMENTS,TO THE NATIONAL CASH REGISTER COMPANY, OF JERSEY CITY, NEWV JERSEY, ACORPORATION OF NEIV JERSEY.

ADDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 754,544, dated March15, 1904. Application filed December 24., 1894. Serial No. 532,855. \Nomodel.)

To all whmn it nuty concern:

Be it known that I, WILLIAM H. CLARK, a citizen of the United. States,residing at Erie, in the county of Erie and State of Pennsylvania, haveinvented certain new and useful Improvements in Adding-Machines; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to adding-machines; and it consists in certainimprovements in the construction thereof, as will be hereinafter fullydescribed, and pointed out in the claims.

The invention is illustrated in the accompanying drawings as follows:

Figure 1 shows a front elevation of the machine. Fig. 2 shows a sectionon the line 2 2 in'Fig. 1 looking in the direction of the arrows, a partbeing broken away to the next tally-piece groove to the right. Fig. 3 isa section of a fragment of the frame on the line 3 3 in Fig. 1, showingthe tally-piece guides. Fig. A is a section of a fragment of the frameon the line A 4c in Fig. 1, showing the tallypiece guides with thetally-pieces therein. Fig. 5 shows a detached tally-piece. Fig. 6 showsa detached tally-piece with a carryingfinger thereon.

A marks the frame having the tally-piece guides therein and is composedof the front and rear plates cm and top and bottom pieces a/ a. The endpieces A are secured to the ends of the frame and are provided with thelower projections A which serve as legs or supports for the machine. Theframe is traversed by a series of grooves a -one for each denominationand these grooves are endless or continuous, passing around the machine,and form guides for the tally-pieces. The tally-pieces B are placed inthese grooves or guides, and the adding is accomplished by the movementof the tally-pieces in these grooves. The tally-pieces have thefinger-pieces Z) and the slides b. The slides b are placed in thegrooves [0 and an L-shaped lip a, which extends out from the frame andover the slides 12, holds them in place. The tall y-pieces of eachdenomination are numbered in series from O to 9. In the machine shownthere are five series for each denomination. This is simply a matter ofconvenience, as one or more series may be used with the same effect. Thenumbers are placed on the outer surface of the finger-pieces, it beingthe most prominent position, to display them.

A stop-bar A is placed across the front of the machine, under which thetally-pieces pass and against which the linger-piece is stopped in itsmovement in actuating tally-pieces. In line witlneach guide is a smallreading-notch A, through which is displayed the number of thetally-piece immediately under it, and these notches, taken together, Iterm the readingline. By looking at the guide to the left of the machinewe see that this denomination is set at 2. If it is desired to add, say,four to this denomination, we might perform the mental operation andpush the 6 tallypiece down into the reading-line. To obviate this mentaloperation, I place adjacent to each guide a series of figures A oneopposite each tally-piece and running from 1, one tally-piece above thereading-line, to 9, nine tally-pieces above the reading-line. Now takingour former example, the left guide, if it is desired to add four to the2 indicated at the reading-line it is only necessary to place the fingerupon the tally-piece opposite A of series A and push this tally-piecedown to the reading-line, which tally-piece, as will readily be seen, is6, the indication desired. A similar arrangement of the guides andfigures of the other denominations allows of a similar operation.

As the sum possible to indicate in each guide operated independentlycould only equal at most the number of tally-pieces in said guide, inorder to give the machine any considerable capacity it is necessary thateach sum in the lower denomination equal to a unit of a higherdenomination should be carried or indicated in the higher denominationand that there should be a naught indication in the lower denominationin place of the sum so carried, or, in other words, a tally-piece of thehigher denomination should be actuated when the sum of the operations ofthe lower denominations equals a unit or tally-piece of the higherdenomination. To accomplish this purpose, I employ the following means:At some point, preferably at the reading-line, a notch a is cut throughthe L shaped lip (17 and exposes a corner of the slides b as thetally-pieces pass under it. By reference to Fig. 4 it will be seen thatthe slide is thicker than the depth of the groove (5 and has aprojection b", which slides on the surface of the frame A. In eachseries one of the tallypieces in the construction shown (the Otally-pieoe) is provided with a spring-finger 6 which projects over andnormally rides against the lip a of the next higher denomination and soforms a friction to hold the tally-pieces in place. Each of thetallypieces has the lower right-hand corner beveled off, as shown at Z2Figs 5 and 6. As a springiinger 72" comes to notch a it springs into it.The beveled corner of the tally-piece at the top of the notch allows thefinger to engage the upper right-hand corner of the tally-piece underthe notch (0 As the tally-pieces in the way of lower denomination aremoved the finger actuates the tally-pieces in the next higher way onetally-piece and is then thrown out of engagement by the inclined surfaceat the lower end of the notch a The result of this operation is obvious.The O tally-pieces are the tenth tally-pieces. Taking the first twocolumns to the right for examples, they are now set at 09. If we addone, the '0 (tenth) tally-piece will be brought into the reading-line ofthe lower denomination; At the same time the finger has" pushed the 0tally-piece of the next higher denomination out of the reading-line andthe 1 tally-piece of said denomination into it, so that the reading ofthe two columns will be l0-the correct sum. The other columns arearranged in the same way.

It will be readily seen that any denomination-tens, hundreds, '&c.may beadded by the operation of the tally-pieces in the guides of saiddenomination, the carrying will be accomplished in the same manner asdescribed, and the amount indicated at the reading-line will be the sumof the operations.

WVhat I claim as new is 1. In an adding-machine, the combination of aseries of guides, each one representing a different denomination, pluralseries of tallypieces adapted to move in said guides, each seriesrepresenting a different denomination and each tally-piece adapted to bemoved initially to operate its series, a spring-finger on a tally-pieceof each lower denomination adapted to engage a tally-piece in the nexthigher denomination as said linger passes a designated point, a fixedabutment for disengaging said finger from said tally-piece and forholding the same normally out of engagement with any tally-piece,whereby the sum of the number of the tally-piece of the lowerdenomination is transferred to a digit of the higher denomination andthe pressure of said springlinger upon said abutment forms a brake forpreventing overthrow of the tally-pieces.

2. In an adding-machine, the combination with guides for differentdenominations; tallypieces in said guides; and a spring-finger on atally-piece of the lower denomination that moves a tally-piece in thehigher denomination and forms a friction-plate for holding thetally-pieces in place.

3. In an adding-machine, the combination with guides for differentdenominations having the Lshaped retaining-1i p a with notches atherein; tally-pieces in said guides; a springlinger on a tally-piece oflower denomination that normally rides against the retaining-lip of thehigher denomination and is adapted to enter the notch a to actuate atally-piece of the higher denomination.

4-. In an adding-machine, the combination of a series of guides, eachone representing a different demomination, plural series of tallypiecesadapted to move in said guides, each series representing a differentdenomination and each tally-piece adapted to be moved initially tooperate its series, a spring-finger on a tally-piece of each lowerdenomination adapted to engage a tally-piece in the next higherdenomination as said finger passes a designated point, a fixed abutmentfor disengaging said finger from said tally-piece and for holding thesame normally out of engagement with any tally-piece, whereby the sum ofthe number of the tally-piece of the lower denomination is transferredto a digit of the higher denomination and the pressure of saidspringfinger upon said abutment forms a brake for preventing overthrowof the tally-pieces.

In testimony whereof I aflix my signature in presence of two witnesses.

W lLLIAM H. CLARK. WVitnesses:

H. A. STRONG, H. C. LORD.

